Appliance including an antenna using a portion of appliance as a ground plane

- Whirlpool Corporation

An appliance, such as an oven, includes a housing having an internal compartment and an RF antenna. At least a portion of the housing comprises an electrically conductive portion. The antenna includes an active component and a connection to the electrically conductive portion, which serves as a ground plane of the antenna. The housing may include a door assembly having a window that includes the electrically conductive portion in the form of a transparent conductive layer. The door assembly may be detachable and the connection to the antenna may be made by way of capacitive coupling. In an alternative arrangement, the housing includes a light fixture for illuminating the internal compartment, wherein the active component of the antenna is disposed in the light fixture.

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Description
BACKGROUND

The present device generally relates to household appliances, and more specifically, to an oven appliance.

SUMMARY

In at least one aspect, an appliance is provided that comprises a housing including an internal compartment, wherein at least a portion of the housing comprises an electrically conductive portion, and an antenna for at least one of receiving RF signals and transmitting RF signals, wherein the antenna comprises an active component and a connection to the electrically conductive portion such that the electrically conductive portion serves as a ground plane of the antenna. According to one variation, the housing further comprises a door assembly having a closed position and an open position for allowing user ingress into the internal compartment, the door assembly including a window for allowing viewing of the internal compartment from outside the internal compartment, and the window including the electrically conductive portion in the form of at least one transparent conductive layer. According to another variation, the housing comprises a light fixture for illuminating the internal compartment, wherein the active component of the antenna is disposed in the light fixture. According to yet another variation, the appliance further comprises: a coaxial cable having a center pin and a metal sheath surrounding the metal pin, and a conductive plate electrically coupled to the center pin, wherein the housing further comprises a door frame and a door assembly detachably mounted to the door frame and having a closed position and an open position for allowing user ingress into the internal compartment, wherein the active component of the antenna is disposed at the door assembly, and wherein the conductive plate is mounted to the door frame and is spaced apart but proximate to the door assembly when the door assembly is in the closed position such that the conductive plate is capacitively coupled to the active component of the antenna when the door assembly is in the closed position.

In at least another aspect, an appliance is provided that comprises a housing including an internal compartment; a door assembly having a closed position and an open position for allowing user ingress into the internal compartment; a window provided in the door assembly for allowing viewing of the internal compartment from outside the compartment, the window including at least one transparent conductive layer; and an antenna for at least one of receiving RF signals and transmitting RF signals, wherein the antenna comprises an active component and a connection to the at least one transparent conductive layer such that the at least one transparent conductive layer serves as a ground plane of the antenna.

In at least another aspect, an appliance is provided that comprises a housing including an internal compartment, wherein at least a portion of the housing comprises an electrically conductive portion, wherein the housing comprises a light fixture for illuminating the internal compartment, and an antenna for at least one of receiving RF signals and transmitting RF signals, wherein the antenna comprises an active component and a connection to the electrically conductive portion such that the electrically conductive portion serves as a ground plane of the antenna, wherein the active component of the antenna is disposed in the light fixture.

These and other features, advantages, and objects of the present device will be further understood and appreciated by those skilled in the art upon studying the following specification, claims, and appended drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

In the drawings:

FIG. 1 is a perspective view of one embodiment of an appliance with the door assembly in a closed position;

FIG. 2 is an exploded view of a door assembly of the appliance shown in FIG. 1;

FIG. 3 is a partial cross section of the door assembly of the appliance shown in FIG. 1;

FIG. 4 is a perspective view of an oven portion of the appliance shown in FIG. 1 with the door assembly in an open position;

FIG. 5A is a perspective view of an oven portion of the appliance shown in FIG. 1 with an alternate coupling of a coaxial cable to an active component of an antenna disposed at the door assembly;

FIG. 5B is an enlarged view of the alternate coupling shown in FIG. 5A;

FIG. 6 is a side view of the alternate coupling shown in FIGS. 5A and 5B;

FIG. 7 is a perspective view of the internal compartment of the appliance shown in FIG. 1 having a light fixture;

FIG. 8 is a perspective view of the light fixture shown in FIG. 7 with the transparent cover removed;

FIG. 9 is a side view of the light fixture shown in FIG. 7;

FIG. 10 is a perspective view of the light fixture shown from the rear according to one implementation; and

FIG. 11 is a perspective view of the light fixture shown from the rear according to another implementation.

DETAILED DESCRIPTION OF EMBODIMENTS

For purposes of description herein, the terms “upper,” “lower,” “right,” “left,” “rear,” “front,” “vertical,” “horizontal,” and derivatives thereof shall relate to the appliance as oriented in FIG. 1. However, it is to be understood that the device may assume various alternative orientations and step sequences, except where expressly specified to the contrary. It is also to be understood that the specific devices and processes illustrated in the attached drawings and described in the following specification are simply exemplary embodiments of the inventive concepts defined in the appended claims. Hence, specific dimensions and other physical characteristics relating to the embodiments disclosed herein are not to be considered as limiting, unless the claims expressly state otherwise.

It is known in the art of cooking appliances to include a temperature probe that may be inserted into the food being cooked. Such temperature probes may communicate via wireless RF signals to an antenna inside an internal compartment of the appliance. However, the integration of antennas into an appliance cavity can be difficult due to style, cleanability, and damage concerns. The antenna should fit within aesthetic considerations and also must be in a place where it cannot be easily damaged. Moreover, in some instances, it may be desirable to transmit RF signals into and out of the internal compartment of the appliance. However, appliances are predominantly made of metal either as inside cavities or external enclosures. In the case of ovens, both internal and external. Door glass can also be coated with metals (such as tin oxide or silver oxide). This leads to a space that is shielded such that transmission of electromagnetic waves is impossible to cross into/out of the appliance.

Antennas are sensitive to metal surroundings. Metal surroundings can inhibit or disrupt the signal radiation. It is difficult to incorporate an antenna inside an oven cavity due to the metal interior and exterior and the aforementioned style, cleanability, and damage concerns. Where the antenna is a patch antenna, the dielectric substrate used between the patch and the ground plane is sensitive to high temperatures. Such high temperatures can result in signal drop or loss.

Referring to the embodiment illustrated in FIG. 1, reference numeral 10 generally designates an appliance. Appliance 10 may be any type of appliance, but is described herein with respect to a cooking appliance such as a range or wall oven. The particular appliance shown in FIG. 1 is a range having a cooktop 14 and an oven 16.

As shown in FIG. 1, appliance 10 generally includes a housing 12 including an internal compartment 20 and an antenna 30 for at least one of receiving RF signals and transmitting RF signals. Antenna 30 includes an active component 32 and a connection to an electrically conductive portion of housing 12 such that the electrically conductive portion serves as a ground plane 34 of antenna 30.

Housing 12 includes a door assembly 18 having a closed position (FIG. 1) and an open position (FIG. 4) for allowing user ingress into internal compartment 20. Door assembly 18 may include a handle 24 and a window 26 for allowing viewing of internal compartment 20 from outside the internal compartment. Window 26 may include the electrically conductive portion in the form of at least one transparent conductive layer 61, 62, 63, 64, 65 (FIG. 3).

Window 26 may include multiple spaced glass panes. As shown in FIGS. 2 and 3, window 26 includes an interior glass substrate 40 having an interior surface 40a facing internal compartment 20 and an exterior surface 40b, and an exterior glass substrate 42 having an interior surface 42a facing exterior surface 40b of interior glass substrate 40 and an exterior surface 42b that may constitute the outermost surface of window 26. Window 26 may also include an insulated window pack 44 including a first glass sheet 46 and a second glass sheet 48. Insulated window pack 44 is disposed between interior glass substrate 40, and said exterior glass substrate 42 First glass sheet 46 is disposed between second glass sheet 48 and interior glass substrate 40. First glass sheet 46 has an interior surface 46a and an exterior surface 46b. Second glass sheet 48 has an interior surface 48a and an exterior surface 48b. As described further below, the at least one transparent conductive layer 61, 62, 63, 64, 65 is disposed on a surface of at least one of interior glass substrate 40, exterior glass substrate 42, first glass sheet 46 and second glass sheet 48.

A metal skin 28 of door assembly 18 may be disposed around window 26 and have a front side 28a and an interior side 28b. Metal skin 28 may be made of various materials including stainless steel.

As shown in FIG. 3, the at least one transparent conductive layer may be any one of a plurality of such transparent conductive layers. Oven windows often include a number of transparent metal layers used for heat reflection. These layers may be made of tin oxide or silver oxide. Although these layers are not used for their electrical conductivity, the layers can, in fact, conduct electricity and therefore be used as a ground plane 34 for antenna 30. For example, a first transparent conductive layer 61 may be provided on interior surface 40a of interior glass substrate 40. A second transparent conductive layer 62 may be provided on interior surface 46a of first glass sheet 46. A third transparent conductive layer 63 may be provided on exterior surface 46b of first glass sheet 46. A fourth transparent conductive layer 64 may be provided on interior surface 48a of second glass sheet 48. A fifth transparent conductive layer 65 may be provided on exterior surface 48b of second glass sheet 48. Any one or more of these layers can be used as the ground plane 34 of antenna 30. The particular transparent conductive layer used as the ground plane 34 may depend on the configuration and location of the active component 32 of antenna 30. Various possible implementations are described below.

According to a first implementation, the at least one transparent conductive layer is first transparent conductive layer 61 disposed on interior surface 40a of interior glass substrate 40. Thus, first transparent conductive layer 61 serves as ground plane 34 of antenna 30. Active component 32 of antenna 30 includes a thin conductive substance (such as metallic ink, wire, etc.) printed on interior surface 40a of interior glass substrate 40. As shown in FIGS. 4 and 5A, the printed thin conductive substance serving as active component 32 may extend along a perimeter of window 26 while being physically separated from ground plane 34 (FIG. 3). In this implementation the antenna would transmit and/or receive signals from within internal compartment 20. Multiple printed thin conductive tracings may be disposed about the perimeter of window 26 to form multiple antennas if desired. The antenna(s) may be monopole or dipole. Note that in FIG. 4, active components 32 would be used in place of metal conductor 70 (described below).

If it is desired to provide exterior signal coverage, active component 32 may be printed on the interior surface 42a of exterior glass substrate 42 and the at least one transparent conductive layer is fifth transparent conductive layer 65 disposed on exterior surface 48b of second glass sheet 48 such that fifth transparent conductive layer 65 serves as ground plane 34.

As shown in FIG. 4, electrical connection to active component 32 and ground plane 34 of antenna 30 may be made using a coaxial cable 100 having a center pin 102 and a metal sheath 104 that is insulated from center pin 102 and surrounds the center pin. Metal sheath 104 may be electrically coupled to transparent conductive layer 61, 62, 63, 64, 65 (serving as ground plane 34) and center pin 102 may be electrically coupled to said active component 32. Coaxial cable 100 may be run through the hinge that connects door assembly 18 to appliance 10. Another technique for making the coaxial connection is described below with respect to FIGS. 5A and 5B.

According to another implementation, interior side 28a of metal skin 28 (which may be stainless steel) surrounding window 26 of door assembly 18 is electrically coupled to center pin 102 such that interior side 28a of metal skin 28 acts as active component 32 of antenna 30. In this implementation, the at least one transparent conductive layer 61, 62, 63, 64, 65 is first transparent conductive layer 61 disposed on interior surface 40a of interior glass substrate 40 such that first transparent conductive layer 61 serves as ground plane 34. In this arrangement the antenna 30 communicates with one or more devices within the internal compartment 20. To communicate with external devices, the exterior side 28b of metal skin 28 may be used as the active component 32 while the at least one transparent conductive layer 61, 62, 63, 64, 65 is fifth transparent conductive layer 65 disposed on exterior surface 48b of second glass sheet 48 such that fifth transparent conductive layer 65 serves as ground plane 34.

According to another implementation shown in FIG. 4, a physical antenna 30 may be mounted on door assembly 18. More specifically, a separate metal conductor 70 may be mounted on door assembly 18 to serve as active component 32 while at least one transparent layer 61, 62, 63, 64, 65 in window 26 is used as ground plane 34. For interior signal coverage, separate metal conductor 70 may be mounted on the inside door frame of door assembly 18 and the at least one transparent conductive layer 61, 62, 63, 64, 65 is first transparent conductive layer 61 disposed on interior surface 40a of interior glass substrate 40 such that first transparent conductive layer 61 serves as ground plane 34. For exterior signal coverage, separate metal conductor 70 may be mounted on the outside of door assembly 18 and the at least one transparent conductive layer 61, 62, 63, 64, 65 is fifth transparent conductive layer 65 disposed on exterior surface 48b of second glass sheet 48 such that fifth transparent conductive layer 65 serves as ground plane 34. One location for the mounting of separate metal conductor 70 on the outside of door assembly 18 is to provide metal conductor 70 in handle 24. Note that metal conductor 70 would be used in place of active components 32 shown in FIG. 4.

In another implementation, a patch antenna may be used for antenna 30. In this case, active component 32 may comprise one of the transparent conductive layers in window 26 while another one of the transparent conductive layers serves as ground plane 34 and air and/or glass is the dielectric layer between active component 32 and ground plane 34. For example, for interior signal coverage, the active component patch 32 may be the first transparent conductive layer 61 disposed on interior surface 40a of interior glass substrate 40 while ground plane 34 may be the first transparent conductive layer 61 disposed on interior surface 46a of first glass sheet 46 as shown in FIG. 3. For exterior signal coverage, the active component patch 32 may be the fifth transparent conductive layer 65 disposed on exterior surface 48b of second glass sheet 48 while ground plane 34 may be the fourth transparent conductive layer 64 disposed on interior surface 48a of second glass sheet 48. It should be noted that the two patch antennas may be combined to provide coverage both inside and outside the appliance.

As shown above with respect to FIG. 4, connections to antenna 30 may be made directly (or indirectly) via coaxial cable 100. One way of indirectly coupling antenna 30 to coaxial cable 100 is shown in FIGS. 5A, 5B, and 6 where capacitive coupling is used such that coaxial cable 100 does not need to physically connect to door assembly 18. This provides the benefit that the door assembly 18 may be more easily detached from appliance 10. This can provide a significant advantage in appliances that require detachment of the door assembly due to installation of trim built into the appliance. In this case, a conductive plate 110 is electrically coupled to center pin 102 of coaxial cable 100. Housing 12 may further include a front door frame 29 and door assembly 18 may be detachably mounted to front door frame 29 and having a closed position and an open position for allowing user ingress into internal compartment 20. Conductive plate 110 is mounted to door frame 29 and is spaced apart but proximate to door assembly 18 when door assembly 18 is in the closed position such that conductive plate 110 is capacitively coupled to active component 32 of antenna 30 when door assembly 18 is in the closed position. When the active component 32 is the interior side 28a of metal skin 28, the capacitive coupling may be directly between conductive plate 110 and metal skin 28. Alternatively, a second conductive plate may be mounted to the inside of the door assembly 18 opposite conductive plate 110 with the second conductive plate electrically connected to active component 32 via wires or other coaxial cable. If the first transparent conductive layer 61 is acting as the active component 32 of a patch antenna as described above, the conductive plate 110 may be positioned to be opposite first transparent conductive layer 61 so as to be directly capacitively coupled thereto. The connection to ground plane 34 may also be made via the door hinge(s) 27, which may serve as a ground conductor.

As discussed above, there is also the possibility of having multiple antennas mounted to the door assembly 18 as well as multiple conductive plates capacitively coupling the antennas to respective coaxial cables. Providing multiple antennas 30 can help with signal strength and omnidirectionality inside of the internal compartment 20 or to allow communications both inside and outside the appliance.

As shown in FIGS. 7-10, housing 12 may further include a light fixture 150 positioned on an interior wall 22 of internal compartment 20 for illuminating internal compartment 20. As an alternate location for antenna 30 or as a location for an additional antenna to one disposed in door assembly 18, one could provide the antenna 30 in light fixture 150. Specifically, active component 32 of antenna 30 may be disposed in light fixture 150. This location would serve primarily for communication with a device placed inside internal compartment 20. If communication was also desired outside the appliance, an antenna could be disposed elsewhere including the door assembly 18 as described above.

Light fixture 150 may include the electrically conductive portion constituting ground plane 34 of antenna 30. Alternatively, a portion or all of interior wall 22 of housing 12 may include the electrically conductive portion constituting ground plane 34. Light fixture 150 includes an enclosure 152 having at least one metal wall 154, which may serve as ground plane 34. Light fixture 150 includes a transparent cover 156, which may be made of glass, through which light from a light source is transmitted into internal compartment 20. Active component 32 of antenna 30 may be disposed on either surface of transparent cover 156. As shown, the active component 32 may be a circular F antenna. Transparent cover 156 is preferably made of glass, which transmits light and does not inhibit radio waves.

In one implementation, active component 32 is disposed on the surface of transparent cover 156 that faces internal compartment 20. In this case, a transparent conductive coating may be provided on the opposite surface of cover 156 to serve as ground plane 34. Accordingly, metal sheath 104 of coaxial cable 100 is coupled to the transparent conductive coating serving as ground plane 34 and center pin 102 is connected to active component 32, which may be in the form of a wire or printed conductive material.

In another implementation, active component 32 is disposed on the surface of transparent cover 156 opposite the one that faces internal compartment 20. In this case, at least one metal wall 154 of enclosure 152 may serve as ground plane 34. Accordingly, metal sheath 104 of coaxial cable 100 is coupled to metal wall 154 and center pin 102 is connected directly to active component 32 through a hold in the back of enclosure 152 of light fixture 150.

Although the above embodiments are described as having the active component 32 of the antenna 30 provided in door assembly 18 and/or light fixture 150, the active component 32 may be disposed in any other component within internal compartment 20 while a portion of housing 12 may be used as the ground plane 34.

By having the active component 32 of the antenna 30 provided in door assembly 18, light fixture 150, or other component while a portion of housing 12 is used as the ground plane 34, an antenna 30 may be integrated in an appliance in such as way that it does not impact the style or cleanability of the appliance and without raising any damage concerns. Moreover, antennas can be integrated so as to transmit and receive signals into and out of the internal compartment of the appliance. Further, antennas can be integrated into the appliance while using some of the existing structure as a ground plane and/or active component of the antenna and thereby reduce construction time and expense.

It will be understood by one having ordinary skill in the art that construction of the described device and other components is not limited to any specific material. Other exemplary embodiments of the device disclosed herein may be formed from a wide variety of materials, unless described otherwise herein.

For purposes of this disclosure, the term “coupled” (in all of its forms—couple, coupling, coupled, etc.) generally means the joining of two components (electrical or mechanical) directly or indirectly to one another. Such joining may be stationary in nature or movable in nature. Such joining may be achieved with the two components (electrical or mechanical) and any additional intermediate members being integrally formed as a single unitary body with one another or with the two components. Such joining may be permanent in nature or may be removable or releasable in nature unless otherwise stated.

It is also important to note that the construction and arrangement of the elements of the device as shown in the exemplary embodiments is illustrative only. Although only a few embodiments of the present innovations have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited. For example, elements shown as integrally formed may be constructed of multiple parts, elements shown as multiple parts may be integrally formed, the operation of the interfaces may be reversed or otherwise varied, the length or width of the structures and/or members or connector or other elements of the system may be varied, the nature or number of adjustment positions provided between the elements may be varied. It should be noted that the elements and/or assemblies of the system may be constructed from any of a wide variety of materials that provide sufficient strength or durability, in any of a wide variety of colors, textures, and combinations. Accordingly, all such modifications are intended to be included within the scope of the present innovations. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the desired and other exemplary embodiments without departing from the spirit of the present innovations.

It will be understood that any described processes or steps within described processes may be combined with other disclosed processes or steps to form structures within the scope of the present device. The exemplary structures and processes disclosed herein are for illustrative purposes and are not to be construed as limiting.

It is also to be understood that variations and modifications can be made on the aforementioned structures and methods without departing from the concepts of the present device, and further it is to be understood that such concepts are intended to be covered by the following claims unless these claims by their language expressly state otherwise.

The above description is considered that of the illustrated embodiments only. Modifications of the device will occur to those skilled in the art and to those who make or use the device. Therefore, it is understood that the embodiments shown in the drawings and described above is merely for illustrative purposes and not intended to limit the scope of the device, which is defined by the following claims as interpreted according to the principles of patent law, including the Doctrine of Equivalents.

Claims

1. An oven for heating a food item, the oven comprising:

a housing including an internal compartment for receiving the food item, wherein at least a portion of the housing comprises an electrically conductive portion; and
an antenna for at least one of receiving RF signals and transmitting RF signals from/in a first direction, wherein the antenna comprises an active component and a connection to said electrically conductive portion such that said electrically conductive portion serves as a ground plane of said antenna,
wherein the ground plane is positioned behind the active component relative to the first direction,
wherein said housing further comprises a door assembly having a closed position and an open position for allowing user ingress into said internal compartment, said door assembly including a window for allowing viewing of the internal compartment from outside the internal compartment, said window including: an interior glass substrate having an interior surface facing said internal compartment and an exterior surface; an exterior glass substrate having an interior surface facing said exterior surface of said interior glass substrate and an exterior surface; and said electrically conductive portion in the form of at least one transparent conductive layer positioned on one of the surfaces of either the interior glass substrate or the exterior glass substrate; and
wherein the active component is positioned on another one of the surfaces of either the interior glass substrate or the exterior glass substrate.

2. An appliance comprising:

a housing including an internal compartment, wherein at least a portion of the housing comprises an electrically conductive portion;
an antenna for at least one of receiving RF signals and transmitting RF signals from/in a first direction, wherein the antenna comprises an active component and a connection to said electrically conductive portion such that said electrically conductive portion serves as a ground plane of said antenna, wherein the ground plane is positioned behind the active component relative to the first direction;
a coaxial cable having a center pin and a metal sheath surrounding the center pin; and
a conductive plate electrically coupled to said center pin;
wherein said housing further comprises a door frame and a door assembly detachably mounted to said door frame and having a closed position and an open position for allowing user ingress into said internal compartment,
wherein said active component of said antenna is disposed at said door assembly, and
wherein said conductive plate is mounted to said door frame and is spaced apart but proximate to said door assembly when said door assembly is in the closed position such that said conductive plate is capacitively coupled to said active component of said antenna when said door assembly is in the closed position.

3. The appliance of claim 2, wherein said door assembly includes a metal skin that is capacitively coupled to said conductive plate when said door assembly is in the closed position, and wherein said metal skin serves as an active component of said antenna.

4. The appliance of claim 2, wherein said door assembly includes a window for allowing viewing of the internal compartment from outside the internal compartment, said window including a glass substrate having an interior surface, wherein said antenna is a patch antenna and said active component of said antenna comprises a transparent metallic layer disposed on said interior surface of said glass substrate, and wherein said transparent metallic layer is capacitively coupled to said conductive plate when said door assembly is in the closed position.

5. An appliance comprising:

a housing including an internal compartment;
a door assembly having a closed position and an open position for allowing user ingress into said internal compartment;
a window provided in said door assembly for allowing viewing of the internal compartment from outside the compartment, said window including: an interior glass substrate having an interior surface facing said internal compartment and an exterior surface; an exterior glass substrate having an interior surface facing said exterior surface of said interior glass substrate and an exterior surface; and at least one transparent conductive layer; and
an antenna for at least one of receiving RF signals and transmitting RF signals from/in a first direction, wherein said antenna comprises an active component and a connection to said at least one transparent conductive layer such that said at least one transparent conductive layer serves as a ground plane of said antenna,
wherein the active component is positioned between the interior glass substrate and the exterior glass substrate and the at least one transparent conductive layer is disposed behind the active component relative to the first direction.

6. The appliance of claim 5, wherein said at least one transparent conductive layer is a layer of tin oxide.

7. The appliance of claim 5, wherein said window further comprises:

an insulated window pack comprising a first glass sheet and a second glass sheet disposed between said interior glass substrate and said exterior glass substrate, said first glass sheet disposed between said second glass sheet and said interior glass substrate, said first glass sheet having an interior surface and an exterior surface, said second glass sheet having an interior surface and an exterior surface,
wherein said at least one transparent conductive layer is disposed on a surface of one of said interior glass substrate, said exterior glass substrate, said first glass sheet and said second glass sheet.

8. The appliance of claim 5 and further comprising a coaxial cable having a center pin and a metal sheath surrounding the center pin for electrically coupling to said antenna, wherein said metal sheath is electrically coupled to said at least one transparent conductive layer, said door assembly includes a metal skin surrounding said window on said door assembly, and wherein said center pin is connected to said metal skin such that said metal skin acts as said active component of said antenna.

9. The appliance of claim 5, wherein said active component of said antenna comprises a separate metal conductor mounted to said door assembly.

10. The appliance of claim 5, wherein said active component of said antenna comprises a thin conductive substance printed on one of said interior surface of said exterior glass substrate and said interior surface of said interior glass substrate.

11. The appliance of claim 5, wherein said antenna is a patch antenna and said active component of said antenna comprises a transparent conductive layer disposed on said interior surface of said interior glass substrate.

12. The appliance of claim 5 and further comprising:

a coaxial cable having a center pin and a metal sheath surrounding the metal pin; and
a conductive plate electrically coupled to said center pin;
wherein said housing further comprises a door frame, said door assembly detachably mounted to said door frame,
wherein said active component of said antenna is disposed at said door assembly, and
wherein said conductive plate is mounted to said door frame and is spaced apart but proximate to said door assembly when said door assembly is in the closed position such that said conductive plate is capacitively coupled to said active component of said antenna when said door assembly is in the closed position.

13. An appliance comprising:

a housing including an internal compartment, wherein at least a portion of the housing comprises an electrically conductive portion, wherein said housing comprises a light fixture for illuminating said internal compartment; and
an antenna for at least one of receiving RF signals and transmitting RF signals from/in a first direction, wherein the antenna comprises an active component and a connection to said electrically conductive portion such that said electrically conductive portion serves as a ground plane of said antenna,
wherein said active component of said antenna is disposed in said light fixture, and wherein the ground plane is positioned behind the active component relative to the first direction,
wherein said light fixture includes a transparent cover, and
wherein said active component of said antenna is disposed on a surface of said transparent cover that faces said internal compartment, wherein said transparent cover includes a transparent conductive coating on an opposite surface, and wherein said electrically conductive portion is said transparent conductive coating such that said transparent conductive coating constitutes said ground plane of said antenna.
Referenced Cited
U.S. Patent Documents
1141176 June 1915 Copeman
1380656 June 1921 Lauth
1405624 February 1922 Patterson
1598996 September 1926 Wheelock
1808550 June 1931 Harpman
2024510 December 1935 Crisenberry
2530991 November 1950 Reeves
2536613 January 1951 Schulze et al.
2699912 January 1955 Cushman
2777407 January 1957 Schindler
2781038 February 1957 Sherman
2791366 May 1957 Geisler
2815018 December 1957 Collins
2828608 April 1958 Cowlin et al.
2847932 August 1958 More
2930194 May 1960 Perkins
2934957 May 1960 Reinhart et al.
D191085 August 1961 Kindl et al.
3017924 January 1962 Jenson
3051813 August 1962 Busch et al.
3065342 November 1962 Worden
3089407 May 1963 Kinkle
3259120 July 1966 Keating
3386431 June 1968 Branson
3463138 August 1969 Lotter et al.
3489135 January 1970 Astrella
3548154 December 1970 Christiansson
3602131 August 1971 Dadson
3645249 February 1972 Henderson et al.
3651300 March 1972 Haagensen
3691937 September 1972 Meek et al.
3731035 May 1973 Jarvis et al.
3749875 July 1973 Fitzmayer
3777985 December 1973 Hughes et al.
3780954 December 1973 Genbauffs
3857254 December 1974 Lobel
3877865 April 1975 Duperow
3899655 August 1975 Skinner
D245663 September 6, 1977 Gordon
4104952 August 8, 1978 Brass
4149518 April 17, 1979 Schmidt et al.
4363956 December 14, 1982 Scheidler et al.
4413610 November 8, 1983 Berlik
4418456 December 6, 1983 Riehl
4447711 May 8, 1984 Fischer
4466789 August 21, 1984 Riehl
4518346 May 21, 1985 Pistien
4555606 November 26, 1985 Thomas
4556771 December 3, 1985 Thomas
4587946 May 13, 1986 Doyon et al.
4646963 March 3, 1987 Delotto et al.
4654508 March 31, 1987 Logel et al.
4689961 September 1, 1987 Stratton
4812624 March 14, 1989 Kern
4818824 April 4, 1989 Dixit et al.
4846671 July 11, 1989 Kwiatek
4886043 December 12, 1989 Homer
4891936 January 9, 1990 Shekleton et al.
D309398 July 24, 1990 Lund
4981416 January 1, 1991 Nevin et al.
4989404 February 5, 1991 Shekleton
5021762 June 4, 1991 Hetrick
5136277 August 4, 1992 Civanelli et al.
5171951 December 15, 1992 Chartrain et al.
D332385 January 12, 1993 Adams
5215074 June 1, 1993 Nilson et al.
5243172 September 7, 1993 Hazan et al.
D340383 October 19, 1993 Addison et al.
5272317 December 21, 1993 Ryu
D342865 January 4, 1994 Addison et al.
5316423 May 31, 1994 Kin
5397234 March 14, 1995 Kwiatek
5448036 September 5, 1995 Husslein et al.
D364993 December 12, 1995 Andrea
5491423 February 13, 1996 Turetta
D369517 May 7, 1996 Ferlin
5546927 August 20, 1996 Lancelot
5571434 November 5, 1996 Cavener et al.
D378578 March 25, 1997 Eberhardt
5618458 April 8, 1997 Thomas
5649822 July 22, 1997 Gertler et al.
5735261 April 7, 1998 Kieslinger
5785047 July 28, 1998 Bird et al.
5824999 October 20, 1998 Kim
5842849 December 1, 1998 Huang
5913675 June 22, 1999 Vago et al.
5928540 July 27, 1999 Antoine et al.
D414377 September 28, 1999 Huang
5967021 October 19, 1999 Yung
6016096 January 18, 2000 Barnes et al.
6030207 February 29, 2000 Saleri
6049267 April 11, 2000 Barnes et al.
6050176 April 18, 2000 Schultheis et al.
6078243 June 20, 2000 Barnes et al.
6089219 July 18, 2000 Kodera et al.
6092518 July 25, 2000 Dane
6111229 August 29, 2000 Schultheis
6114665 September 5, 2000 Garcia et al.
6133816 October 17, 2000 Barnes et al.
6155820 December 5, 2000 Döbbeling et al.
6188045 February 13, 2001 Hansen et al.
6192669 February 27, 2001 Keller et al.
6196113 March 6, 2001 Yung
6253759 July 3, 2001 Giebel et al.
6253761 July 3, 2001 Shuler et al.
6320169 November 20, 2001 Clothier
6322354 November 27, 2001 Carbone et al.
6362458 March 26, 2002 Sargunam et al.
6377221 April 23, 2002 Lindenmeier
6452136 September 17, 2002 Berkcan et al.
6452141 September 17, 2002 Shon
6469286 October 22, 2002 Nobue
6589046 July 8, 2003 Harneit
6614006 September 2, 2003 Pastore et al.
6619280 September 16, 2003 Zhou et al.
6655954 December 2, 2003 Dane
6663009 December 16, 2003 Bedetti et al.
6718965 April 13, 2004 Rummel et al.
6733146 May 11, 2004 Vastano
6806444 October 19, 2004 Lerner
6837151 January 4, 2005 Chen
6891133 May 10, 2005 Shozo et al.
6910342 June 28, 2005 Berns et al.
6930287 August 16, 2005 Gerola et al.
6953915 October 11, 2005 Garris, III
7005614 February 28, 2006 Lee
7017572 March 28, 2006 Cadima
D524105 July 4, 2006 Poltronieri
7083123 August 1, 2006 Molla
7220945 May 22, 2007 Wang
D544753 June 19, 2007 Tseng
7274008 September 25, 2007 Valero et al.
7281715 October 16, 2007 Boswell
7291009 November 6, 2007 Kamal et al.
7315247 January 1, 2008 Jung et al.
7325480 February 5, 2008 Grühbaum et al.
D564296 March 18, 2008 Koch et al.
7348520 March 25, 2008 Wang
7368685 May 6, 2008 Nam et al.
7411160 August 12, 2008 Duncan et al.
7414203 August 19, 2008 Winkler
7417204 August 26, 2008 Nam et al.
D581736 December 2, 2008 Besseas
7468496 December 23, 2008 Marchand
D592445 May 19, 2009 Sorenson et al.
7527495 May 5, 2009 Yam et al.
D598959 August 25, 2009 Kiddoo
7589299 September 15, 2009 Fisher et al.
D604098 November 17, 2009 Hamlin
7614877 November 10, 2009 McCrorey et al.
7628609 December 8, 2009 Pryor et al.
7640930 January 5, 2010 Little et al.
7696454 April 13, 2010 Nam et al.
7708008 May 4, 2010 Elkasevic et al.
7721727 May 25, 2010 Kobayashi
7731493 June 8, 2010 Starnini et al.
7762250 July 27, 2010 Elkasevic et al.
7770985 August 10, 2010 Davis et al.
7781702 August 24, 2010 Nam et al.
7823502 November 2, 2010 Hecker et al.
7829825 November 9, 2010 Kühne
7840740 November 23, 2010 Minoo
7841333 November 30, 2010 Kobayashi
7919736 April 5, 2011 Ikeda
7964823 June 21, 2011 Armstrong et al.
D642675 August 2, 2011 Scribano et al.
8006687 August 30, 2011 Watkins et al.
8015821 September 13, 2011 Spytek
8037689 October 18, 2011 Oskin et al.
8057223 November 15, 2011 Pryor et al.
8141549 March 27, 2012 Armstrong et al.
8217314 July 10, 2012 Kim et al.
8220450 July 17, 2012 Luo et al.
8222578 July 17, 2012 Beier
D665491 August 14, 2012 Goel et al.
8272321 September 25, 2012 Kalsi et al.
8288690 October 16, 2012 Boubeddi et al.
8302593 November 6, 2012 Cadima
8304695 November 6, 2012 Bonuso et al.
8342165 January 1, 2013 Watkins
8344292 January 1, 2013 Franca et al.
8393317 March 12, 2013 Sorenson et al.
8398303 March 19, 2013 Kuhn
8430310 April 30, 2013 Ho et al.
8464703 June 18, 2013 Ryu et al.
D685225 July 2, 2013 Santoyo et al.
D687675 August 13, 2013 Filho et al.
8526935 September 3, 2013 Besore et al.
8535052 September 17, 2013 Cadima
D693175 November 12, 2013 Saubert
8584663 November 19, 2013 Kim et al.
8596259 December 3, 2013 Padgett et al.
8616193 December 31, 2013 Padgett
8660297 February 25, 2014 Yoon et al.
8687842 April 1, 2014 Yoon et al.
8689782 April 8, 2014 Padgett
8707945 April 29, 2014 Hasslberger et al.
8747108 June 10, 2014 Lona Santoyo et al.
8783167 July 22, 2014 Titel
8800543 August 12, 2014 Simms et al.
D718061 November 25, 2014 Wu
8887710 November 18, 2014 Rossi et al.
8930160 January 6, 2015 Wall et al.
8932049 January 13, 2015 Ryu et al.
8950389 February 10, 2015 Horstkoetter et al.
8978637 March 17, 2015 Ryu et al.
D727489 April 21, 2015 Rohskopf et al.
9021942 May 5, 2015 Lee et al.
9074765 July 7, 2015 Armanni
D735525 August 4, 2015 Nguyen
9113503 August 18, 2015 Valero et al.
9132302 September 15, 2015 Luongo et al.
D743203 November 17, 2015 Filho et al.
9175858 November 3, 2015 Tisselli et al.
9179506 November 3, 2015 Sim
D750314 February 23, 2016 Hobson et al.
9307888 April 12, 2016 Baldwin et al.
D758107 June 7, 2016 Hamilton
D766036 September 13, 2016 Koch et al.
D766696 September 20, 2016 Kemker
9513015 December 6, 2016 Estrella et al.
9521708 December 13, 2016 Edelmann et al.
9557063 January 31, 2017 Cadima
9572475 February 21, 2017 Gephart et al.
9644847 May 9, 2017 Bhogal et al.
9696042 July 4, 2017 Hasslberger et al.
9879864 January 30, 2018 Gutierrez et al.
9927129 March 27, 2018 Bhogal et al.
20020065039 May 30, 2002 Benezech et al.
20040007566 January 15, 2004 Staebler et al.
20040031782 February 19, 2004 Westfield
20040164075 August 26, 2004 Henze
20040195399 October 7, 2004 Molla
20040224273 November 11, 2004 Inomata
20040224274 November 11, 2004 Tomiura
20050029245 February 10, 2005 Gerola et al.
20050112520 May 26, 2005 Todoli et al.
20050199232 September 15, 2005 Gama et al.
20050268000 December 1, 2005 Carlson
20050268794 December 8, 2005 Nesterov
20060138127 June 29, 2006 Kawashima
20060157482 July 20, 2006 Lingenheil
20070124972 June 7, 2007 Ratcliffe
20070181410 August 9, 2007 Baier
20070251936 November 1, 2007 Nam et al.
20070281267 December 6, 2007 Li
20080029081 February 7, 2008 Gagas
20080050687 February 28, 2008 Wu
20080173632 July 24, 2008 Jang et al.
20080210685 September 4, 2008 Beier
20080223855 September 18, 2008 Boxman
20090173730 July 9, 2009 Baier et al.
20090188396 July 30, 2009 Hofmann
20090320823 December 31, 2009 Padgett
20100035197 February 11, 2010 Cadima
20100114339 May 6, 2010 Kaiser et al.
20100126496 May 27, 2010 Luo et al.
20100192784 August 5, 2010 Shim
20100192939 August 5, 2010 Parks
20110142998 June 16, 2011 Johncock et al.
20110163086 July 7, 2011 Arjol et al.
20110248021 October 13, 2011 Sutierrez et al.
20120017595 January 26, 2012 Liu
20120024835 February 2, 2012 Artal Lahoz et al.
20120036855 February 16, 2012 Hull et al.
20120067334 March 22, 2012 Kim et al.
20120076351 March 29, 2012 Yoon et al.
20120099761 April 26, 2012 Yoon et al.
20120160228 June 28, 2012 Kim et al.
20120171343 July 5, 2012 Cadima et al.
20120261405 October 18, 2012 Kurose et al.
20130043239 February 21, 2013 Anton Falcon et al.
20130252188 September 26, 2013 Chen
20130255663 October 3, 2013 Cadima et al.
20130260618 October 3, 2013 Bally et al.
20130277353 October 24, 2013 Joseph
20130314226 November 28, 2013 Zhang
20140048055 February 20, 2014 Ruther
20140071019 March 13, 2014 Lim
20140090636 April 3, 2014 Bettinzoli
20140097172 April 10, 2014 Kang et al.
20140116416 May 1, 2014 Saubert
20140137751 May 22, 2014 Bellm
20140139381 May 22, 2014 Sippel
20140174489 June 26, 2014 Cottrell
20140318527 October 30, 2014 Silva et al.
20140352549 December 4, 2014 Upston et al.
20150096974 April 9, 2015 Freeman et al.
20150136760 May 21, 2015 Lima et al.
20150153041 June 4, 2015 Neumeier
20150241069 August 27, 2015 Brant et al.
20150330640 November 19, 2015 Wersborg
20150345800 December 3, 2015 Cabrera Botello
20150359045 December 10, 2015 Neukamm et al.
20160029439 January 28, 2016 Kurose et al.
20160061490 March 3, 2016 Cho et al.
20160091210 March 31, 2016 Ceccoli
20160095469 April 7, 2016 Gregory et al.
20160116160 April 28, 2016 Takeuchi
20160153666 June 2, 2016 Tcaciuc
20160174768 June 23, 2016 Deverse
20160178209 June 23, 2016 Park et al.
20160178212 June 23, 2016 Park et al.
20160187002 June 30, 2016 Ryu et al.
20160201902 July 14, 2016 Cadima
20160209044 July 21, 2016 Cadima
20160209045 July 21, 2016 Millius
20160219656 July 28, 2016 Hunter, Jr.
20160295644 October 6, 2016 Khokle et al.
20160296067 October 13, 2016 Laws
20160327279 November 10, 2016 Bhogal
20170003033 January 5, 2017 Lona Santoyo et al.
20170067651 March 9, 2017 Khokle et al.
20170074522 March 16, 2017 Cheng
20170082296 March 23, 2017 Jeong et al.
20170082299 March 23, 2017 Rowley et al.
20170108228 April 20, 2017 Park et al.
20170115008 April 27, 2017 Erbe et al.
20170261213 September 14, 2017 Park et al.
20170223774 August 3, 2017 Cheng et al.
20180035495 February 1, 2018 Millett
20180058702 March 1, 2018 Jang et al.
Foreign Patent Documents
2365023 July 2002 CA
2734926 October 2011 CA
201680430 December 2010 CN
2845869 April 1980 DE
3014908 October 1981 DE
3238441 April 1984 DE
3446621 June 1986 DE
3717728 December 1988 DE
3150450 August 1989 DE
3839657 May 1990 DE
4103664 January 1992 DE
4445594 June 1996 DE
10218294 November 2003 DE
60004581 June 2004 DE
102004002466 August 2005 DE
19912452 October 2007 DE
102006034391 January 2008 DE
102007021297 November 2008 DE
102008027220 December 2009 DE
102008042467 April 2010 DE
102009002276 October 2010 DE
102013218714 April 2014 DE
0122966 October 1984 EP
0429120 May 1991 EP
0620698 October 1994 EP
0690659 January 1996 EP
1030114 August 2000 EP
1217306 June 2002 EP
1344986 September 2003 EP
1586822 October 2005 EP
1099905 February 2006 EP
1201998 March 2006 EP
1460342 May 2006 EP
2063181 May 2009 EP
2063444 May 2009 EP
2116775 November 2009 EP
2116829 November 2009 EP
2278227 January 2011 EP
2299181 March 2011 EP
2375170 October 2011 EP
2144012 September 2012 EP
2657615 October 2013 EP
2816291 December 2014 EP
2835580 February 2015 EP
3006832 April 2016 EP
2848867 September 2017 EP
2787556 June 2000 FR
2789753 August 2000 FR
3003338 September 2014 FR
2158225 November 1985 GB
2001141244 May 2001 JP
2003227615 August 2003 JP
2005009693 January 2005 JP
2007147131 June 2007 JP
2010038475 February 2010 JP
2011257021 December 2011 JP
1991013526 September 1991 WO
9850736 November 1998 WO
2006072388 July 2006 WO
2006136363 December 2006 WO
2012077050 June 2012 WO
2013098330 July 2013 WO
2013182410 December 2013 WO
WO 2014/194176 December 2014 WO
WO 2015/086420 June 2015 WO
Other references
  • Built-In Gas Cooktop, image post date Feb. 18, 2015, in U.S. Appl. No. 29/539,768 in Restriction Requirement dated Oct. 27, 2016, 10 pages, <http://www.bestbuy.com/site/kitchenaid-36-built-in-gas-cooktop-stainless-steel/8636634.p?skuId=8636634>.
  • True-Heat burner, image post date Jan. 30, 2015, in U.S. Appl. No. 29/539,768 in Restriction Requirement dated Oct. 27, 2016, 2 pages, <http://ovens.reviewed.com/news/kitchenaid-has-a-new-flame>.
  • Metal Cover Gas Hob, image post date 2012, in U.S. Appl. No. 29/539,768 in Restriction Requirement dated Oct. 27, 2016, 13 pages, <http://inse.gmc.globalmarket.com/products/details/metal-cover-gas-hob-8516959.html>.
  • Penny Stove, image post date 2004, in U.S. Appl. No. 29/539,768 in Restriction Requirement dated Oct. 27, 2016, 30 pages, <http://www.jureystudio.com/pennystove/stoveinstruction.html>.
Patent History
Patent number: 11777190
Type: Grant
Filed: Dec 29, 2015
Date of Patent: Oct 3, 2023
Patent Publication Number: 20170187091
Assignee: Whirlpool Corporation (Benton Harbor, MI)
Inventors: Rachael Acker (East Lansing, MI), Zachary J. Bruin-Slot (Baroda, MI), Wyndham F. Gary, Jr. (Whitefish Bay, WI), David W. Mundy (St. Joseph, MI)
Primary Examiner: Helena Kosanovic
Assistant Examiner: Ayub A Maye
Application Number: 14/982,137
Classifications
Current U.S. Class: Absorption (219/744)
International Classification: H05B 6/76 (20060101); H01Q 1/22 (20060101); H05B 6/64 (20060101); H01Q 1/38 (20060101);